Schema uses certain HTML elements and CSS properties that make use of HTML5 doctype. Please be sure to include it in all of your projects.
Google provides theirs through a CDN. Just put this link in the
of your website.
<!DOCTYPE html> <html> <head> <!--[if lt IE 9]> <script src="//cdnjs.cloudflare.com/ajax/libs/html5shiv/r29/html5.min.js"></script> <![endif]--> </head> <body> </body> </html>